#
#  Copyright 2019 The FATE Authors. All Rights Reserved.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
#


from federatedml.nn.hetero_nn.backend.hetero_nn_model import HeteroNNKerasGuestModel
from federatedml.nn.hetero_nn.backend.hetero_nn_model import HeteroNNKerasHostModel


def model_builder(role="guest", hetero_nn_param=None, backend="keras"):
    if backend != "keras":
        raise ValueError("Only support keras backend in this version!")

    if role == "guest":
        return HeteroNNKerasGuestModel(hetero_nn_param)
    elif role == "host":
        return HeteroNNKerasHostModel(hetero_nn_param)

